Alesatori manuali regolabili da H4 a H12 9 pezzi da 15/32 a 1-3/16" pollici 6 lame USA TOOLS
H12 (I)~> 1.1/16" - 1.3/16" (26.98mm - 30.16mm). H4 (A)~> 15/32" - 17/32" (11.9mm - 13.5mm). The blades are made up carbon steel for long life and can be adjusted by loosening one nut while tightening the other.